Atoms
What is an atom?
The smallest unit of a chemical element.
What are the 3 phases of Matter?
Solid, liquid and gas
What is a molecule?
A molecule has 2 or more atoms that can be the same or different.
2 electrons
What is the name of the super continent that existed when all the land was together?
Pangaea
What is the charge on a proton and in what part of the atom is it found?
A proton has a positive charge and is found in the nucleus.
What is the term for a liquid converting to a gas?
Evaporation
What is a compound?
A compound has 2 or more different atoms.
How many electrons fit in the 7th shell of an atom?
Antarctica
What is precipitation?
Precipitation is any form of water fall back to the ground. Rain, snow, sleet or hail
What is the charge on a neutron and in what part of the atom is it found?
A neutron is neutral and is found in the nucleus.
What is the term for a gas converting to a liquid?
Condensation
How many hydrogen atoms in oleic acid C18H34O3?
34 hydrogen atoms
If you have 37 electrons how many shells do you need to fit them all?
What is transpiration?
Transpiration is water evaporating from the leaves of plants.
What is the charge of an electron and in what part of the atom is it found?
An electron is negative and is found in shells.
What is the term for a solid converting to a gas?
Sublimation
What is a covalent bond?
2 shared electrons between atoms
What is the answer: (12-6)2 + 14.3 + 12.14 = ?
62.44
What did Dr. Molina discover?
He discovered that CFCs where damaging the ozone layer.
How do you calculate the number of neutrons for an atom?
To get the number of neutrons, you subtract the atomic number from the atomic weight.
What is the term for a gas converting to a solid?
Provide 2 examples of a molecule and 2 examples of a compound.
Oxygen, nitrogen, hydrogen, glucose, carbon dioxide, methane
What is the answer: (28-19)2 - 27.45 - 28.96 = ?
24.59
In what layer of the atmosphere is the ozone layer?
The stratosphere